DNS/Deadwoodについて、ここに記述してください。

http://maradns.samiam.org/deadwood/

../リゾルバー/Deadwood

DNS/MaraDNS/bailiwick-rule

http://maradns.samiam.org/deadwood/doc/Recursive-algorithm.html

http://maradns.samiam.org/deadwood/doc/Recursive-algorithm.html 

Deadwood is immune to many DNS spoofing attacks
because it uses a different method to resolve domains than what most other DNS servers use.
While more complicated, and sometimes a little slower, this is more than compensated for by having better security.